And frederick a



I tioii of the arrows zit-said line.

Patented Sept. 18, 1923.

UNITED STATES A v 1,468,510 PATENT OFFICE.

ARTHUR r. room, or PELHAM MANOR, Raw YoRK, AND FREDERICK A. IIART, or

NEW BRITAIN, CONNECTICUT, ASSIGNOBS TOR-EMINGTON ACCOUNTING MACHINE"CORPORATION, on NEW YORK, N. 'Y;, A CORPORATION or NEW YORK.

CALCULATING Mixenmn.

Application nia September 293922. .Serial :0. 591,29.

To allwhomit may cone-emu, Q Be it known that we ARTHUR POO E andFREDERICK A. HART, citizens of the United States, and residents,respectively, of Pelham Manor, in thecounty of West-' Chester and Stateofi ;New York, and New Britain, in the county of Hartford and State ofConnecticut, have inventedJ new and useful In; rovement's in v tingMachines, of w lich the following is a specification. I k i Ourinvention relates to computing machines and the object thereof generallystated, is to provide an. improved roller or Wheel construction forguiding the carriages or trucks ofsuch machin s. 1 Our inventionconsists in certain features of construct.ion. arrangements of parts andcombinationsof devices setforth inthe following specification and moreparticularly pointed out inthe appended claims,

The invention is show embodied inthe present instance in a Remingtonaccounting machine, onlyso nuch of said machine being shown as isnecessary to illustrate our invention in its embodiment therein. itshould be understood, however, that the invention may be included inother makes of accounting machines.

In the accompanying drawings, wherein like reference characters indicatecorresponding; parts in the diiferentviews', V v

Figure l is an enlarged detail ertical -toi-e-and-att central sectionalviewof a portion of the Remington accounting machine embodying: our,im'ention, the upper roller and its support being shown in sideelevation.

FifIllI'Q 2 is a much enlarged detail vertical 'loriii-a' hd-aftsectional view of thesup= per roller and the means for supporting andadjusting: the same, together with a portioii ot thetruck with whichtheroller reacts; the rcti'on being taken on the line L -Qof Fig. 3 andlooking in the direc- Eigui'e :2; is an enlarged detail top plan view ofthe upper roller and its supporting i'neans. y

The Remington accounting machine comprises a type iy riting niaehine tqtl ie top plate a of which brackets" b are secured by screws 0. Screws.d .fi x'edly. c0111 ect the framework 1' of the a ctuator' of comcertainalculatputing mechanism to, the brackets b. Arms orbrackets 2 projectforwardly from the ends of the typewriter carriage, and at their forwardends are loosely connected to bars on brackets 3; one fastened by screwbolts and nuts 6 to each end 01" the computer truck 4; on which may bemounted one or more tqtalizer 7 Each of said totalizers CO tainscomputing mechanism including a I Said gears 6 and totalizers collide,and it the wheels;v 6 and 7 do not mesh properly the operation may behard or otherwise imperfect. In the Reinington accounting inacliine thetriicl: 4- is somewhat loosely connected with the arms 3 tired to thetypewriter carriage, as pointed out, for example, in the patent toGeorge A. Seib, No., 1,4-23.7Lil dated July 25, 1922. This is in ordertofenable the truck 4 to have a small limited amount o't tree move mentat its ends with respect to the'hracket arms 2. The accurate guiding ofthe truck at is effected at the middle of the'machine substantially inthe fore-and-aft vertical plane of the master wheel, this being thepoint at which accuracyis required. To this end the truck has been givena cross section like that indicated'in Fig. 1,50 as to provide threetracks orguideways S. 9 and it) The trackway S is at thehottoni ot' thetruck and faces downward and is sup ported by a roll or wheel 11 whichcarries thev vertical weight of the truck and the totalizers mounted onit. The track 9 at the bottom of the truck and tacos rearward andpresses against a roll or wheel 12. flhe vertically, disposed hearingtace ot the trackway 10 is at the topof the truck and presses forwardagainst a roller which resists the forward thrust of the truck. Theusual upper roller situated at this point is replaced by the specialroller 13 of our invention constr icted and mountcd in a manner whichwill hereinafter appear. The roller 11 is mounted in the usual manner ona spindle l l arranged in an eccentrically disposed bearing in thesleeve or bushing 15, to provide for an up and down adjustment of theroller 11 by a t irning' adjustment of the bushing. as pointed out inthe patent to Oscrr Woodward, No. 1.401.225 dated December QT, 199.1.The roller 12 is mounted on an eccuitrical y arranged bearing 16 on apin 17, so that a turning adjustment oi said pin eilect a tore-and-at'tadjustment or the roller as pointed out in said last mentioned patent.

Heretotore the upper roller that enacted vith the track 1 washorizontally disposed:

turning on a verti'al axii, and was neces sarily limited in size by thespace in which it was received between the face of track 10 and the o;'erlapping portions of the totalizers carried by the truck. The truckordinarily runs with the g eater part of its weightsupported on thethree rollers ll, 12 and 13 and it will be seen tl at the center ofgravity of the trucl: is forward of the roller 1.1 When a number oftotalize s are mounted on and. project forward from the truck there is aconstant forward pressure or thrust xerted againstthe upper roller 13.In some instances this overhanging weight becomes considerahle and ithas been found that by reason oi? the small diameter the upper frontroller it failed to turn when enacting with the track 10. The tracl: lllsliding against the roller gradually caused wear thereon; soziurtimcssuliicicnt. to wear a tlat face on the roller. Then it would lie11Q(ef:.'1t to replace the wor: roller with a new one. .Ycar on theupper roller allows the upper partof the tract: to dro; torwar l anddestroy the nice adjustment and re lation between the wheels 6 and themaster wheel 7.

The main object of our invention is to overcome these disadvantages andto provide simple and highly et i ent means which may readily replacehe: crly employed to guide the upper 'ioriion oi the truck, withoutmodilyng other structural features of the machine. To these aids weprtwide a bearing block 18 a perturcd at 19 to receive two screws 20 bywhich the hloclc is secured at the center ot the machine in the plane ofthe master wheel i and on the top of th fixed frame l of the actuator.The block is split at Qt to form two jaws and in the body of t ie blockand between these for ned a smooth hore hearing the axis of which isinclined. A cylindrical spindle or support is received and tits in thishearingand constitutes a support for the roller [1. headed screw 2-2 isthreaded at one end only and passes through aligned open ings thatextend transversely through the jaws of the block, as shown in Fig. 3.The transverse opening in which the threaded end of the screw isreceived is tapped to coact with the threads on the screw. whereas theunthreaded portion of the shank of the screw passes freely through theopening in the other jaw. By loosening the screw Ql the jaws of thehearing may .pring' apart suiliciently to free the spindle from theclamping pressure by which it is held; enabling the spindle to beadjusted either axially or around its axis and by tightening said screw,said spindle may be held securely in adjusted position. A nick 25 may hemade in the upper end of the spindle to facilitate its turningadjustment with the aid of a screw driver.

The wheel 13 is eccentrically journaled on the toward end of the spindle23 by a suitable ball hearing which, in the form shown i the presentinstance is constructed s follows: Arranged eccentrically in the spindleE23 and longitudinally thereof is a tapped opening 26. This openingreceives a screw 2-? which is formed at its lower end with a head 28forming one section ot a twopart hall-hearing member. This head has a reliWZLfZ on which anti-friction balls 30 roll an{ a nick 31 to receive ascrew river and enable the screw to be threaded into the opening 26. Asecond section 32 of the hearing member has a traolcvay 33 on which theballs 30 roll. This section aj'ierturi-d centrally for the passagetl1e1'cll11'o\i;5l| ol the shank of thc screw 2?. \VilSllttllll0 siacingf member or convolute ll ol' :1 soft steel wire coil surrounds theshanl of the screw and is interposed between the two sections it; and32. determining the cxlcnt of relative adjustment hctwccn the sectionstowards each other after the requisite compression oi the spacing memherbetween said sections has been once ctl'cctcd. The back or upper side ofthe section 3'. hears against thc lower cud of the spindle 21; when thescrew with tlic hearing mcnela r thereon is threaded home as shown inl'ig. 2. thus holding the hearing sections firmly together ano againstdisplacement from the spindle or sup ort 9 The inclined cir cuia-rseries ot halls 30 are received in a rm-mvay 35 in the roller 1.3 thatis Vaihaped in cross section. so that the said ro ler supported w thits: plane inclined.

It will be seen that this roller has two heveled contact hearing: ihCoS3t) and ll each inclined to the plane of the rolle' and to the axisthereof. lVe prefer to slightly curve the c so that each presents only apoint bearing on the fiat bearing face of the track with which itcoacts. The contact face 36 normally coacts' with the verticallydisposed hearing ontacl 'hures H1 cross section loo face of the track10,,the roller resisting the forward thrust of the .truck at the upperportion thereof. The bearing face 37 of the roller is normally out ofcontact with a horn zontally disposed bearing face of track 38 on thetruck, but is adaptedto coact therewith to limit the upward movement orthrust of the truck, that formerly was limited by a set screw carried bythe frame 1. It will be understood, therefore that the roller 1'3 notonly resists the forward thrust of the truck but also limits its upwardthrust, and that in thus attaining these ends the roller 13 coacts withtwo bearing faces on the double track 10- 38 arranged at right angles toeach other and at angles to the axis of the roller 13. This roller ispurposely arranged to permit a slight upward play of the truck and alsoto permit a slight rearward play at itsupper ortion, which rearward playis limited the usual stop screw 39, whereas a slight forward play at thelower portion of the truck is limited in the usual manner b a verticallydisposed track-face 40 on the t uck ooacting with the rear side of theroller 11. c

In order that the roller 13 may beproperly adjusted both upand down withreference to the track 38 and fore-and-aft of the machine'tb determineitsposition to resist the forward thrust of the track 10, it is merelynecessary to adjust. the spindle or support 23. Said spindlehas twoadjustments, viz, by sliding it e'nd'wise and by turning it. The firstadjusts the wheel 13 inthe direction of its axis, and the second, byreason of the eccentric mounting of said wheel, adjusts the lattertransverse to its axis. By a combination of the two the wheel can bebrought to correct position both front and back and also up and down.The means for effecting these adjustments in two directions atsubstantial right angles to each other are at all times readi'l Iaccessible and maybe quickly efi'ected an once attained may bepermanentl' tightening the screw 24. y

It will be understood that by supporting the roller 13 in an inclinedpos tion as shown, said roller may extend above or overliethetotalizer-s and is ma in tained out of the path thereof, and alsoextends" to a position below the upper portion oi the totalizers and inthe rear thereof where it overlies the truck. It will be seen that thisrelative arrangement of the artsenables us to employ a rollcr 13 whichhas a diameter greater than the thickness of the truck and to provide a.bearing face of larger circumference than that heretofore employed. Thisdistribute th wear over a greater circumferential surface on the roller,andsuch surface'b in fat; a greater ie na m t i oi d e hereto'toreestates the alter to" be more y maintained by Q roller than.

easily turned in its cooperation with the truck, and also enables us toemploy an effective ball bearing and staunch support for the roller byreason of the increased space afforded by the relative arrangement oftheparts. V

In the present instance we secure a pointer all which coacts inthe usualma nncr with the letter space indices on the part 42 of each totalizerin'the median foreand-aft plane of. the machine by the same screws 24 bywhich the roller supporting block is secured to the frame 1.

From what has been said it will be understood that the master wheel 7,and the points of contact of all of the rollers ll, 12 and 13 with theirtracks, are substantially in the same fore-and-aft vertical median planeof the machine, and that said rollers effectively guide the truck atthis point and insure a proper successive engagement between thetotalizer wheels 6 and the master wheel 7 as the truck carries thetotalizers past said master wheel.

A combination including a truck, and

means for effecting an adjustment of said truck transversely to the lineof its travel comprising a roller, a ball bearii for said roller, and arc-tativeii adjustable er on which said ball bearing is mounts trical'lyof said rotatively adjustable meniher, is the sole invention ofFrederick A. Hart" and is claimed by him in a com )tlIllOH application,Serial No. 604182 filed )igvcc-nr her 1. 1922.

What we laim as new and desire to seclfnjo by Letters Patent, is 2- Ix 1. In a calculating IlHlClllllQ, the combinationw'ith a calculatortruck, and means for guiding said truck comprising :1 guide track on thetrucln'and a roller that coacts with said track to resist a forwardthrust of the truck and also to liniitan upward thrust thereof, theroller being fixed against traveling niovemomf but free to rotate'on itsown axis. 2. In a calculating machine, the combirnt tion with acalculator truck, and means for guiding said truck comprising a guidetrack on tlielruck, and an inclined roller that coacts' with said trackto resista forward thrust of the truck and also tolirn'it an up wardthrust thereof, the roller being fixed against traveling movement butfree to r0- late on its own axis which is inclined.

3. In a calculating machine, the combination with a calculathr truck,and ijneans for guiding said truck .coi'nprising a; guide track on thetruck, and a roller that coacts with said track to i'csis t a, forwardthrust of the truck and also to limit an upward" thrust thereof, theroller being fixed against traveln's. m y me'nt utfr to whi e o i s o naxis and having a; bearing surface inclined to its axis.

guidi g said truck comprising a guide track on the truth. and a rollerthat coacts with aid track to resist or limit the thrust of the ruclr intwo directions at substantially right s ainst traveling movement buttree to roate on its own axis and having oppositely 1d bearing faceswhich coact with beariaces on said track arranged at right 6 In acalculating machine, the combina tion with a calculator truck, and meansfor guiding said trucl: comprising a guide track on the truck. and aninclined roller t iat coacts with said track to resist a forward thrustof the trucl: and also to limit an upward thrust of the truck the rollerbeing l ned against traveling movement but free to rotate on its ownaxis which is inclined. and said roller haying oppositely disposedbeveled bearing surfaces which coact respectively with an uprightbearing face and a horizontal bearing face on said track.

7. In a calculating machine, the combination ol :1 totalizer-carryingtruck and guiding means thercl'or comprising" a centrally locatedsupporting roller that receives the down thrust oi tl e truck and acentrally locatcd inclined roller that resists the forward thrust andalso limits the upward thrust of the truck.

8. In a calculating machine, the combination of a master wheel, atotalizer-carrying truck, and guiding means for said truck comprising aroller which resists the down thrust o t the truck, a second rollerwhich re sists the rearward thrust of the truck at its lower ptu'tion.and a third inclined roller which resists a forward thrust of the trucltand also limits an upward thrust thereof, all o'l said rollers beingincluded in a tore-andart plane which includes the master wheel.

9. In a calculating machine the combination of a totallaser-carryingtruck; guiding means theretor including a centrally lo cated inclinedguide roller located above the truck and cooperative therewith to resista forward thrust of the truck at the top thereof and also to limit anupward thrust of the truck; and neans for effecting an axial adjustmentof said roller and also for effecting an adjustment of said rollertransversely of its axis.

10. Ina calculating machine, the combination of a totaliZer-carryingtruck, and guiding means therefor comprising a split supporting blockhaving a bearing therein, a screw to adjust the jaws of the split blockand thereby loosen or tighten the walls of the bearing, a cylindricalsupport contained in and adjustable both axially and rotatably in saidbearing and held in its adjusted position by tightening the jaws of thesplit block. a hall bearing mounted eccentrically on said cylindricalsupport, a guide roller, anti-friction halls between said guide rollerand ball bearing, and a track on said truck with which said guide rollercoacts.

ll. In a calculating machine, the combination of a totalizer-carryingtruck, and guiding means therefor comprising a split supporting blockfixed on the frame of the machine and having an inclined bearingtherein, a screw to adjust the jaws of the split block and therebyloosen or tighten the walls of the bearing. an inclined cylindricalsupport contained in and adjustable both axially and rotatably in saidbearing and held in its adjusted position by tightening the jaws of thesplit block. a ball bearing mounted eccentrically on said cylindricalsupport. an inclined guide roller, anti-friction balls between saidguide roller and ball bearing, and a track on said truck with which saidinclined guide roller coaets.

12 In a calculating machine, the combi nation ot a totalizm carryingtruck, and guiding means therefor comprising a split supporting blockhaving a hearing therein. a screw to adjust the jaws ot the split blockand thereby loosen or tighten the walls of the bearing, a cylimlricalsupport contained in and adjustable both axially and rotatably in saidhearing and held in its adjusted position by tightening the jaws of thesplit block, a ball bearing mounted cccontrically on said cylindricalsupport. a guide roller having oppositely beveled contact taecs,antitriction balls between said guide roller and ball bearing. and adouble track on said truck having contact tat-cs at substantially rightangles to each other. one coat-ting with a beveled contact face on theroller to resist a forward thrust ol the truck and the other traclc lacecoat-ting with the other bevelcd contact face on the roller to limit theupward thrust of the truck.

13. In a calculat ng machine. the combination of a totaliner truckhaving a track thereon, a totalizer carried by said truck. and a guideroller for said truck arranged in an inclined plane and exteruling overthe truck and above the path of? the totalizer and coacting with saidtrack. whereby a roller of greater diameter than the thickness of thetruck may be employed.

14. In a calculating machine. the combination of a totalizer truckhaving a track thereon, a totalizer carried by said truck, and a guideroller for said truck arranged in an inclined plane and extending overthe truck and above the path of the totalizer and coacting with saidtrack, a ball bearing support for said roller, and means whereby saidroller may be adjusted in two directions at substantially right anglesto each other, the construction and arrangement of the parts being suchthat a guide roller of greater diameter than the thickness of the truckmay be employed and ample space is provided for the effective support ofsaid roller on ball bearings and for the provision of adjusting meansfor the roller.

15. In a calculating machine, the combina tion of a totalizer-carryingtruck, and guiding means therefor con'iprlsi'ng a supporting spindlemounted for turning and axial adjustment and having an eccentricallvarranged tapped opening in one end thereof, ball hearing membersincluding a screw that is received in said tapped opening and providesfor a relative adjustment between the hearing members and for holdingthe members on said supporting spindle, a guide roller, anti-frictionballs between said roller and bearing members, and a track on said truckwithwhich said guide roller coacts.

16. In a calculating machine, the combina tion of atotalizer-carryingtruck, and uiding means therefor comprising an inc ined supportingspindle mounted for turning and axial adjustment and having aneccentrically 86 arranged tapped opening in one end thereof, inclinedball bearing members including a screw that is received in said tappedopening and provides for arelative adjustment between the bearingmembers and for holding the members on said supporting spindle, aninclined guide roller having two contact faces, anti-friction ballsbetween said roller and members and a double track on said truck withwhich the two contact faces on said guide roller coact.

17. In a calculating machine, the combination of a totalizer truckhaving a track thereon; a totalizer carried bythe truck; and guidingmeans for said truck including a centrally located lower roller toresist the down thrust of the truck, and a second centrallylocated upperguide roller arranged in an inclined plane and extending over the truckand above the path of the totalizer and coacting with said track toresist a forward movement of the truck and also to limit an upwardthrust thereof, the construction and arrangement of the parts being suchthat the said upper roller may have a diameter greater than thethickness of the truck and may be effectively supported on the machine.

Signed at the borough of Manhattan, city of New York, in the county ofNew York,

and State of New York, this 27th day of September, A. D. 1922.

ARTHUR F. POOLE. V FREDERICK A. HART. Witnesses:

CHARLES E. SMITH, LILLIAN NELSON.

